Entanglement and interaction in a topological quantum walk
Alberto D. Verga, Ricardo Gabriel Elias
TL;DR
This paper investigates how interactions affect the behavior of two particles performing a quantum walk across a topological interface, revealing a transition influenced by entanglement.
Contribution
It introduces a study of interaction-induced localization-delocalization transition in topological quantum walks, highlighting the role of entanglement in this process.
Findings
Interaction causes a localization-delocalization transition of the edge state.
Entanglement characterizes the transition between localized and delocalized states.
Topological features influence particle dynamics in quantum walks.
Abstract
We study the quantum walk of two interacting particles on a line with an interface separating two topologically distinct regions. The interaction induces a localization-delocalization transition of the edge state at the interface. We characterize the transition through the entanglement between the two particles.
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